in many ways he helped them achieve the liberation of moammar gadhafi so it is even more tragic that he was killed by this mob. >> richard engel reporting from cairo. just about to go to the state department. secretary clinton expected to speak any minutes. just a couple of other minutes from the statement released by the state department and secretary clinton a little earlier. she says all the americans we lost in yesterday's attacks have made the ultimate sacrifice. we condemn this vicious and violent attack that took their lives which they had committed to helping the libyan people reach for a better future. america's diplomats and development experts stand on the front lines every day for our country. we are honored by the service each and every one of them gives. andrea mitchell. >> andrea mitchell at the state department. this is the first ambassador killed in the line of duty, andrea, since 1979. >> and, of course, that was in afghanistan. that's with the russian invasion of afghanistan, so this is an extraordinary occurrence, and it should be overlooked that three other ameri